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Income Taxes - Components of Tax Provision (Benefit) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current:
U.S.									$ 247us-gaap_CurrentFederalTaxExpenseBenefit	$ 222us-gaap_CurrentFederalTaxExpenseBenefit	$ 749us-gaap_CurrentFederalTaxExpenseBenefit
Foreign									34,690us-gaap_CurrentForeignTaxExpenseBenefit	9,827us-gaap_CurrentForeignTaxExpenseBenefit	3,938us-gaap_CurrentForeignTaxExpenseBenefit
Total current									34,937us-gaap_CurrentIncomeTaxExpenseBenefit	10,049us-gaap_CurrentIncomeTaxExpenseBenefit	4,687us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred:
U.S.									330	113	(206)
Foreign									(5,187)	(5,799)	(8,043)
Total deferred									(4,857)us-gaap_DeferredIncomeTaxExpenseBenefit	(5,686)us-gaap_DeferredIncomeTaxExpenseBenefit	(8,249)us-gaap_DeferredIncomeTaxExpenseBenefit
Total provision (benefit)	$ (3,360)us-gaap_IncomeTaxExpenseBenefit	$ 29,218us-gaap_IncomeTaxExpenseBenefit	$ 2,329us-gaap_IncomeTaxExpenseBenefit	$ 1,893us-gaap_IncomeTaxExpenseBenefit	$ (4,692)us-gaap_IncomeTaxExpenseBenefit	$ 3,063us-gaap_IncomeTaxExpenseBenefit	$ 3,489us-gaap_IncomeTaxExpenseBenefit	$ 2,503us-gaap_IncomeTaxExpenseBenefit	$ 30,080us-gaap_IncomeTaxExpenseBenefit	$ 4,363us-gaap_IncomeTaxExpenseBenefit	$ (3,562)us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.